Before the first use only
Before each day of use
The longest boom possible
The heaviest boom
The shortest boom possible
None of the Above
Only if the rigging can handle it
If the operator has experience and knowledge the crane can handle the load.
If your foreman approves it
On critical picks
"Every pick needs to be tied to a ""On the Spot Lift Plan"""
Pipes and Scaffolding
As a last resort with your Job Supts. approval.
Here's an interesting quiz for you.